The Little Ones May Not Like My Book

This week, Publishers Weekly released a list of the bestselling children's books of 2009. The list is divided into four categories: hardcover frontlist (books released in 2009), hardcover backlist (books released prior to 2009), paperback frontlist, and paperback backlist. The books are then grouped together based on the number of copies sold.

Thirteen Reasons Why made the hardcover backlist category for books selling between 200,000 and 299,999 copies. There are a total of thirteen books i...